Explanation of PI, XI. 



Vaccinium cmarginatum HAYATA. 



Fig. 1. A branch. 



2. A branch with flowers. 



3. A flower. 



4. Stamens. 



5. 6. 7. Stamens seen from different sides. 



8. The same (much more magnified). 



9. An ovary in vertical section. 



10. The same in transversal section. 



11. 12. Seeds of different shapes. 



